Fluorescent lamp adaptor base



FIG. 1 is a top perspective view of a fluorescent lamp adapter base showing the new design, the fluorescent lamp being shown in broken lines for illustrative purpose only;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a bottom plan view thereof; and

FIG. 5 is a top plan view thereof. 

The ornamental design for a fluorescent lamp adapter base, as shown and described. 